De la couche mince aux dispositifs spintroniques PDF Download

Author: Michel HEHN
Publisher: Presses Academiques Francophones
ISBN: 9783838148137
Category :
Languages : fr
Pages : 92

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Book Description
Dans un premier chapitre, le magnetisme macroscopique et microscopique de systemes a dimensions laterales reduites est evoque. Les proprietes magnetiques de couches minces, de reseaux de plots submicroniques et de structures auto-organisees nanoscopiques de cobalt hexagonal (0001) ont ete etudiees a l'echelle macroscopique et microscopique. Dans un second chapitre, le transport tunnel dans les jonctions magnetiques planaires sera evoque avec un interet tout particulier et novateur pour la correlation entre distributions d'aimantations dans les electrodes magnetiques et proprietes de transport. Dans un troisieme chapitre, l'utilisation des proprietes du transport tunnel dans les jonctions magnetiques planaires et l'utilisation de couches minces antiferromagnetiques pour des applications seront exposees. Il sera montre comment il est possible de realiser des capteurs de champ magnetique. Dans un quatrieme chapitre, le transport electronique dependant du spin dans des structures metalliques a barrieres multiples sera plus largement presente. L'interet fondamental de ces multicouches hybrides est l'etude du comportement des electrons chauds lors de la traversee du dispositif.

Author: Daniel D. Stancil
Publisher: Springer Science & Business Media
ISBN: 0387778659
Category : Technology & Engineering
Languages : en
Pages : 348

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Book Description
This book begins by introducing magnetism and discusses magnetic properties of materials, magnetic moments of atoms and ions, and the elements important to magnetism. It covers magnetic susceptibilities and electromagnetic waves in anisotropic dispersive media among other topics. There are problems at the end of each chapter, many of which serve to expand or explain the material in the text. The bibliographies for each chapter give an entry to the research literature.

Author: Yoshihiro Hamakawa
Publisher: Springer Science & Business Media
ISBN: 3662105497
Category : Technology & Engineering
Languages : en
Pages : 259

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Book Description
The first comprehensive book on thin-film solar cells, potentially a key technology for solving the energy production problem in the 21st century in an environmentally friendly way. It covers a wide range of scientific and technological aspects of thin film semiconductors - deposition technologies, growth mechanisms and the basic properties of amorphous and nano-crystalline silicon - as well as the optimum design theory and device physics of high-efficiency solar cells, especially of single-junction and multi-junction solar cells. The development of large-area solar cell modules using single and multi-junction solar cells is also considered. Examples of recent photovoltaic systems are presented and analysed.

Author: Evgeny Y. Tsymbal
Publisher: OUP Oxford
ISBN: 0191642223
Category : Science
Languages : en
Pages : 416

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Book Description
This book is devoted to the rapidly developing field of oxide thin-films and heterostructures. Oxide materials combined with atomic-scale precision in a heterostructure exhibit an abundance of macroscopic physical properties involving the strong coupling between the electronic, spin, and structural degrees of freedom, and the interplay between magnetism, ferroelectricity, and conductivity. Recent advances in thin-film deposition and characterization techniques made possible the experimental realization of such oxide heterostructures, promising novel functionalities and device concepts. The book consists of chapters on some of the key innovations in the field over recent years, including strongly correlated oxide heterostructures, magnetoelectric coupling and multiferroic materials, thermoelectric phenomena, and two-dimensional electron gases at oxide interfaces. The book covers the core principles, describes experimental approaches to fabricate and characterize oxide heterostructures, demonstrates new functional properties of these materials, and provides an overview of novel applications.

Author: Laurent-Patrick Levy
Publisher: Springer Science & Business Media
ISBN: 3662042711
Category : Science
Languages : en
Pages : 470

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Book Description
This up-to-date work presents a modern vision of magnetism and superconductivity covering both microscopic and phenomenological aspects. The basic information is illustrated with the help of current research topics such as the quantum Hall effect or mesoscopic aspects of superconductivity.

Author: Yoshio Waseda
Publisher: Springer Science & Business Media
ISBN: 3642166350
Category : Technology & Engineering
Languages : en
Pages : 320

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Book Description
X-ray diffraction crystallography for powder samples is a well-established and widely used method. It is applied to materials characterization to reveal the atomic scale structure of various substances in a variety of states. The book deals with fundamental properties of X-rays, geometry analysis of crystals, X-ray scattering and diffraction in polycrystalline samples and its application to the determination of the crystal structure. The reciprocal lattice and integrated diffraction intensity from crystals and symmetry analysis of crystals are explained. To learn the method of X-ray diffraction crystallography well and to be able to cope with the given subject, a certain number of exercises is presented in the book to calculate specific values for typical examples. This is particularly important for beginners in X-ray diffraction crystallography. One aim of this book is to offer guidance to solving the problems of 90 typical substances. For further convenience, 100 supplementary exercises are also provided with solutions. Some essential points with basic equations are summarized in each chapter, together with some relevant physical constants and the atomic scattering factors of the elements.

Author: Sadamichi Maekawa
Publisher: CRC Press
ISBN: 9781420024579
Category : Technology & Engineering
Languages : en
Pages : 296

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Book Description
In magnetic systems of nano-meter size, the interplay between spin and charge of electrons provides unique transport phenomena. In magnetic superlattices, magnetic and non-magnetic metallic thin films with thickness of the order of one nano-meter are piled-up alternately. Since the discovery of giant magnetoresistance (GMR) in these superlattices in 1988, spin dependent transport phenomena in magnetic nanostructures have received much attention from both academic and technological points of view. Ferromagnetic tunnel junctions made of ferromagnetic metal electrodes and a very thin insulating barrier between them are also of current interest as magnetoresistive devices, where the tunneling current depends on the relative orientation of magnetization (TMR). In addition to magnetic superlattices and magnetic tunnel junctions, magnetic granular systems and magnetic dots have been studied extensively as magnetoresistive systems. Edited by two of the world's leading authorities, Spin Dependent Transport in Magnetic Nanostructures introduces and explains the basic physics and applications of a variety of spin-dependent transport phenomena in magnetic nanostructures with particular emphasis on magnetic multilayers and magnetic tunnel junctions.

Author: Gan Fuxi
Publisher: CRC Press
ISBN: 9814613207
Category : Science
Languages : en
Pages : 730

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Book Description
In the big data era, data storage is one of the cores in the whole information chain, which includes production, transfer, sharing, and finally processing. Over the years, the growth of data volume has been explosive. Today, various storage services need memories with higher density and capacity. Moreover, information storage in the big data applic

Author: Matthias Gross
Publisher: Routledge
ISBN: 1317964675
Category : Business & Economics
Languages : en
Pages : 427

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Book Description
Once treated as the absence of knowledge, ignorance today has become a highly influential topic in its own right, commanding growing attention across the natural and social sciences where a wide range of scholars have begun to explore the social life and political issues involved in the distribution and strategic use of not knowing. The field is growing fast and this handbook reflects this interdisciplinary field of study by drawing contributions from economics, sociology, history, philosophy, cultural studies, anthropology, feminist studies, and related fields in order to serve as a seminal guide to the political, legal and social uses of ignorance in social and political life. Chapter 33 of this book is freely available as a downloadable Open Access PDF under a Creative Commons Attribution-Non Commercial-No Derivatives 4.0 license available here: https://tandfbis.s3-us-west-2.amazonaws.com/rt-files/docs/Open+Access+Chapters/9780415718967_oachapter33.pdf

Author: Teruya Shinjo
Publisher: Elsevier
ISBN: 0444632778
Category : Science
Languages : en
Pages : 373

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Book Description
The concise and accessible chapters of Nanomagnetism and Spintronics, Second Edition, cover the most recent research in areas of spin-current generation, spin-calorimetric effect, voltage effects on magnetic properties, spin-injection phenomena, giant magnetoresistance (GMR), and tunnel magnetoresistance (TMR). Spintronics is a cutting-edge area in the field of magnetism that studies the interplay of magnetism and transport phenomena, demonstrating how electrons not only have charge but also spin. This second edition provides the background to understand this novel physical phenomenon and focuses on the most recent developments and research relating to spintronics. This exciting new edition is an essential resource for graduate students, researchers, and professionals in industry who want to understand the concepts of spintronics, and keep up with recent research, all in one volume. - Provides a concise, thorough evaluation of current research - Surveys the important findings up to 2012 - Examines the future of devices and the importance of spin current